/*
 * Copyright 2022 Yan Kun <yan_kun_1992@foxmail.com>
 *
 * This file fork from netty.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cc.otavia.handler.ssl

/** This class will not do any filtering of ciphers suites. */
class IdentityCipherSuiteFilter private (private val defaultToDefaultCiphers: Boolean) extends CipherSuiteFilter {

    override def filterCipherSuites(
        ciphers: Option[Seq[String]],
        default: Array[String],
        supported: Set[String]
    ): Array[String] = ciphers match
        case Some(value) => value.toArray
        case None        => if (defaultToDefaultCiphers) default else supported.toArray
}

object IdentityCipherSuiteFilter {

    /** Defaults to default ciphers when provided ciphers are null */
    val INSTANCE = new IdentityCipherSuiteFilter(true)

    /** Defaults to supported ciphers when provided ciphers are null */
    val INSTANCE_DEFAULTING_TO_SUPPORTED_CIPHERS = new IdentityCipherSuiteFilter(false)

}
